When you create a chart, the font may not be the format you want. To change the font of Axis labels, please see details below:
Step 1: Click on the X-Axis, or the Y-Axis;
Step 2: Click the Home Tab from the Ribbon;
Step 3: Select the font style in the "Font" section.
Step 4: For example, we change the color of the Y-Axis labels to blue.